Product Overview
This configuration refers to a complete Seismic (Velocity) Monitoring Channel within a Bently Nevada 3500 rack. It comprises two key components working in unison:
3500/42 140471-01: A specific hardware revision (
-01) of the 3500/42 Seismic Monitor module (the core processor/conditioner).176449-02: A specific hardware revision (
-02) of a 3500 System Power Supply or a Backplane Interface Module (providing power and communication to the monitor).
Together, they form a fully functional slot in a 3500 rack dedicated to continuous monitoring of absolute casing or structure vibration via a velocity transducer, providing 4-20 mA outputs, buffered signals, and alarm relays for machinery protection.
Technical Parameters & Specifications
The following table details the specifications for this combined configuration.
| Parameter Category | Specification |
|---|---|
| Complete Assembly Part Number | 3500/42 140471-01 + 176449-02 |
| Monitor Module | 3500/42 Seismic Monitor, HW Rev. 01 (PN: 140471-01) |
| Companion Module | 3500 System Power Supply / Backplane Interface, HW Rev. 02 (PN: 176449-02) |
| Primary Function | Casing Vibration (Velocity) Monitoring & Protection |
| Compatible Transducer | Velocity Seismoprobe® (e.g., 330500, 330525; 100 mV/in/s) |
| Dynamic Range (Velocity) | 0 to 2.0 in/s (0 to 50.8 mm/s) peak, field scalable |
| Frequency Response | 4.5 Hz to 1000 Hz (±3 dB) |
| Primary Output | Isolated 4-20 mA, proportional to velocity |
| Buffered Sensor Outputs | Raw Velocity and Demodulated Signal (for analyzer input) |
| Alarm Channels | Two (Alert & Danger), independently configurable with delay timers |
| Power Requirement (to Rack) | 24 Vdc or 120/240 Vac (dependent on main rack power supply) |
| Module Power (via 176449-02) | Regulated +15 Vdc, -15 Vdc to the 3500/42 module |
| Operating Temperature | -20°C to +65°C (for standard operation) |
| Mounting | Both modules install in dedicated slots of a 3500/05, /15, /25, or /92 rack frame. |
| Dimensions (Per Module, HxWxD) | 190 mm x 54 mm x 200 mm (7.5" x 2.1" x 7.9") - Standard 3500 frame module size. |
| Weight (Monitor: 140471-01) | Approx. 0.48 kg (1.06 lbs) |
| Weight (Power/Interface: 176449-02) | Approx. 0.52 kg (1.15 lbs) |
| Total Weight for Channel | Approx. 1.00 kg (2.21 lbs) (for the two modules) |
| Communication | Communicates via the 3500 rack backplane to the 3500/92 Communication Gateway for system integration. |
| Compliance | cULus, CE, ATEX/IECEx (when installed in a qualified rack/enclosure) |
Application Scenarios
This specific channel configuration is deployed for predictive maintenance and catastrophic failure prevention in various industrial rotating machinery applications.
Power Generation Turbines & Generators: Monitors the bearing housing and structural vibration of steam turbines, gas turbines, and large generators to detect imbalance, misalignment, or developing mechanical looseness.
Critical Pumps & Compressors: Used on boiler feed pumps, cooling water pumps, and centrifugal/reciprocating compressors in refineries and chemical plants to monitor overall vibration, guarding against cavitation, aerodynamic instability, and mechanical faults.
Paper & Steel Mill Machinery: Protects large rolls, dryers, and gearboxes on paper machines and rolling mills by monitoring structural vibration that indicates bearing wear or process instability.
Mining & Material Handling: Monitors vibration on critical conveyor drive systems, crushers, and large fans to prevent unplanned downtime due to bearing failures or structural issues.
Offshore Platforms: Protects vital machinery like gas turbine compressor sets and firewater pumps, where reliability is critical for both safety and production.
Aerospace Test Facilities: Used on ground-based test stands for jet engines and auxiliary power units (APUs) to monitor casing vibration during performance and endurance testing.
Global direct procurement guarantee
All products are purchased directly from overseas original manufacturers or authorized channels, 100% guaranteed genuine quality, sufficient spot inventory, and comprehensive model coverage
Quality Commitment
Each product has been tested by our technicians, providing 12-month long warranty, worry-free after-sales
Flexible procurement plan
- Bulk order enjoys Friendship discount (2 pieces or more can be applied)
- Long-term cooperative customers can apply for priority supply
Full service support
7×24 hours technical consultation, from selection guidance to installation and commissioning to provide full life cycle service (paid)
Why do so many customers choose us?
On the basis of the same quality, we provide:
- More competitive price system
- Faster logistics response
- More complete technical support (free product technical documentation)
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